Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1537
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
DL 1537 · TRI → ATL
departs 6:00 AM ET · arrives 7:09 AM ET
Forecast issued Thu 11:00 PM ET · 7h before departure
Watch this flight
Other days
Today
Sat 10/3 10%
Sun 10/4 8%
Mon 10/5 6%
Tue 10/6 5%
Wed 10/7 5%
Thu 10/8 5%
Odds over time
Arrive at ATL more than 15 minutes late?
9%
chance · ±0 pts
+3 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
9%
Leave 15+ late
9%
Arrive 1h+ late
4%
Cancelled
10%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
3.3d
2d
1d
12h
Now
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 6% · changed +3 pts in 24h
+3 pts
9%
Yes 9%
No 91%
Leave TRI more than 15 minutes late?
Calm-weather odds: 7% · changed +2 pts in 24h
+2 pts
9%
Yes 9%
No 91%
Arrive at ATL more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed +9 pts in 24h
+9 pts
10%
Yes 10%
No 90%
How late will it get to ATL?
On time or early
82%
15–30 min late
5%
30 min–1 hour late
<1%
1–2 hours late
2%
Over 2 hours late
1%
Cancelled
10%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Other factors
↓
Early flights usually leave on time
↓
Mostly benign weather forecast at ATL
Weather at each end
TRI (origin)
Gusts 12 kt Ceiling 7,000 ft Visibility 10+ mi Precip none
ATL (destination)
Gusts 7 kt Ceiling 7,000 ft Visibility 10+ mi Precip 0.02 in
How this resolves
Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.
Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.